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recap_island/proficiencies/strange_list.c

@@ -0,0 +1,146 @@
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include "strange_list.h"
+
+void print_strange_list(const struct data *list, unsigned int size){
+
+    if(!list) return ;
+
+    for (unsigned int i = 0; i < size; i ++){
+    
+        if(list[i].type == INT_TYPE) printf("INT    : %i\n", list[i].value.i);
+        else if (list[i].type == FLOAT_TYPE) printf("FLOAT  : %f\n", list[i].value.f);
+        else printf("STRING : %s\n", list[i].value.s);
+    }
+
+}
+
+int append_strange_list(struct data **list, unsigned int *size, struct data element){
+
+    if(!list || size == 0) return -1;
+
+   struct data *tmp = realloc(*list, (*size + 1) * sizeof(struct data));
+   if(!tmp) return -2;
+
+   *list = tmp;
+
+   (*list)[*size ] = element;
+   (*size) ++;
+
+   return 0;
+}
+
+int remove_at_strange_list(struct data **list, unsigned int *size, int index){
+
+    if(!list || *size == 0 || index < 0 || index > (int)*size) return -1;
+
+    /*if(*size == 1 && index == 0){
+        free(*list);
+        *list = NULL;
+        *size = 0;
+        return 0;
+        //free(list);
+    }*/
+
+    for (unsigned int i = index; i < *size; i ++){
+        (*list)[i] = (*list)[i + 1];
+    }
+    (*size) --;
+    if(*size > 0) *list = realloc(*list, (*size) * sizeof(struct data));
+    else {
+        free(*list);
+        *list = NULL;
+        //free(list);
+    }
+
+    return 0;
+}
+
+int list_strange_list(const char *filename, const struct data *list, unsigned int size){
+
+    if(!filename || !list) return -1;
+
+    FILE *file = fopen(filename, "w");
+    if(!file) return -2;
+    
+    for (unsigned int i = 0; i < size; i ++){
+
+        if(list[i].type == INT_TYPE) fprintf(file, "INT    : %i\n", list[i].value.i);
+        else if (list[i].type == FLOAT_TYPE) fprintf(file, "FLOAT  : %f\n", list[i].value.f);
+        else fprintf(file, "STRING : %s\n", list[i].value.s);
+    
+    }
+    return 0;
+}
+/*
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+
+    struct data *list = NULL;
+    unsigned int size = 0;
+
+    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
+    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "QUOI" } };
+
+    //int err = append_strange_list(&list, &size, elt1);
+    //printf("%d\n", err);
+
+    //append_strange_list(&list, &size, elt2);
+    //printf("%d\n", err);
+
+    //append_strange_list(&list, NULL, elt1);
+    //printf("%d\n", err);
+    int err = remove_at_strange_list(&list, &size, 1);
+    printf("%d\n", err);
+
+    err = remove_at_strange_list(&list, &size, 42);
+    printf("%d\n", err);
+
+    print_strange_list(list, size);
+    
+
+    free(list);
+
+ struct data *list = NULL;
+    unsigned int size = 0;
+
+    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
+    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "FEUR" } };
+
+    append_strange_list(&list, &size, elt1);
+    append_strange_list(&list, &size, elt2);
+    append_strange_list(&list, &size, elt2);
+
+    int err = remove_at_strange_list(&list, &size, 1);
+    printf("%d\n", err);
+
+    err = remove_at_strange_list(&list, &size, 42);
+    printf("%d\n", err);
+
+    print_strange_list(list, size);
+
+    free(list);
+
+
+struct data *list = NULL;
+    unsigned int size = 0;
+
+    struct data elt1 = { .type = INT_TYPE, .value = { .i = 42 } };
+    struct data elt2 = { .type = STRING_TYPE, .value = { .s = "welcome2u" } };
+
+    append_strange_list(&list, &size, elt1);
+
+    append_strange_list(&list, &size, elt2);
+
+    int err = list_strange_list("/tmp/list", list, size);
+    printf("%d\n", err);
+
+    err = list_strange_list("/", list, size);
+    printf("%d\n", err);
+
+    free(list);
+}*/

recap_island/proficiencies/strange_list.h

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+#ifndef STRANGE_LIST_H
+#define STRANGE_LIST_H
+#include <stdio.h>
+enum data_type{
+
+    FLOAT_TYPE,
+    INT_TYPE,
+    STRING_TYPE,
+ };
+
+union value {
+    float f;
+    int i;
+    char *s;
+};
+
+struct data{
+
+    enum data_type type;
+    union value value;
+};
+
+void print_strange_list(const struct data *list, unsigned int size);
+int remove_at_strange_list(struct data **list, unsigned int *size, int index);
+int list_strange_list(const char *filename, const struct data *list, unsigned int size);
+int append_strange_list(struct data **list, unsigned int *size, struct data element);
+
+#endif